NorthWest Advice

Window Advice & Buying Guides

Original guidance for comparing glazing, frame materials and styles, planning replacement windows, caring for hardware and diagnosing common problems.

Casement windows installed by NorthWest Windows & Doors
Double & Triple Glazing

Double & Triple Glazing guides

Compare double and triple glazing, cost factors, lifespan, construction and the situations where an upgrade may be worthwhile.

4 min read

Double Glazed Windows

Double Glazed Windows can improve warmth, weather protection, security and appearance when the frame, glass, ventilation and installation are specified together. The right configuration depends on opening size, exposure, room use and property character.

4 min read

How Much Does Double Glazing Cost?

Window pricing depends on size, frame material, opening style, glass, colour, access and finishing. Online figures rarely describe the same specification. Compare measured, written quotations that state the system, glass, ventilation, installation, making good and guarantee cover.

4 min read

How Long Does Double Glazing Last?

How Long Does Double Glazing Last can be understood by separating the frame, opening sash, sealed or secondary glass, spacer or air gap, seals, hardware and installation. Performance comes from how these components work together, not from the pane count alone.

4 min read

How Does Double Glazing Work?

How Does Double Glazing Work can be understood by separating the frame, opening sash, sealed or secondary glass, spacer or air gap, seals, hardware and installation. Performance comes from how these components work together, not from the pane count alone.

4 min read

Triple Glazed Windows

Triple Glazed Windows can improve warmth, weather protection, security and appearance when the frame, glass, ventilation and installation are specified together. The right configuration depends on opening size, exposure, room use and property character.

4 min read

Triple vs Double Glazing

Triple vs Double Glazing is best decided around the room and property rather than one headline feature. Compare insulation, sightlines, weight, opening method, ventilation, maintenance, security, cost and the installation conditions together.

4 min read

Is Triple Glazing Worth It?

Is Triple Glazing Worth It is best decided around the room and property rather than one headline feature. Compare insulation, sightlines, weight, opening method, ventilation, maintenance, security, cost and the installation conditions together.

4 min read

Triple Glazed Windows Cost

Window pricing depends on size, frame material, opening style, glass, colour, access and finishing. Online figures rarely describe the same specification. Compare measured, written quotations that state the system, glass, ventilation, installation, making good and guarantee cover.

4 min read

Disadvantages of Triple Glazing

Disadvantages of Triple Glazing is best decided around the room and property rather than one headline feature. Compare insulation, sightlines, weight, opening method, ventilation, maintenance, security, cost and the installation conditions together.

Secondary Glazing

Secondary Glazing guides

Understand the separate internal glazing used where primary windows need to remain, including heritage and acoustic applications.

4 min read

Secondary Glazing

Secondary Glazing can improve warmth, weather protection, security and appearance when the frame, glass, ventilation and installation are specified together. The right configuration depends on opening size, exposure, room use and property character.

4 min read

Secondary Glazing Cost

Window pricing depends on size, frame material, opening style, glass, colour, access and finishing. Online figures rarely describe the same specification. Compare measured, written quotations that state the system, glass, ventilation, installation, making good and guarantee cover.

4 min read

Secondary Glazing for Sash Windows

Secondary Glazing for Sash Windows can improve warmth, weather protection, security and appearance when the frame, glass, ventilation and installation are specified together. The right configuration depends on opening size, exposure, room use and property character.

4 min read

Secondary Glazing for Listed Buildings

Secondary Glazing for Listed Buildings should preserve the proportions and rhythm of the elevation as well as improving comfort. Frame material, sightlines, glazing bars, colour and opening pattern may be controlled by listing, conservation status or other planning rules.

4 min read

Secondary Glazing for Noise Reduction

No ordinary domestic window makes a room completely soundproof. Good results come from the complete barrier: suitable glass thicknesses, a sufficiently large air gap where appropriate, airtight seals, controlled ventilation and attention to walls, roofs and other sound paths.

Casement Windows

Casement Windows guides

Explore standard, flush, uPVC, timber and aluminium casement configurations and how they compare with sash windows.

4 min read

Casement Windows

Casement Windows can improve warmth, weather protection, security and appearance when the frame, glass, ventilation and installation are specified together. The right configuration depends on opening size, exposure, room use and property character.

4 min read

uPVC Casement Windows

uPVC Casement Windows can improve warmth, weather protection, security and appearance when the frame, glass, ventilation and installation are specified together. The right configuration depends on opening size, exposure, room use and property character.

4 min read

Timber Casement Windows

Timber Casement Windows can improve warmth, weather protection, security and appearance when the frame, glass, ventilation and installation are specified together. The right configuration depends on opening size, exposure, room use and property character.

4 min read

Aluminium Casement Windows

Aluminium Casement Windows can improve warmth, weather protection, security and appearance when the frame, glass, ventilation and installation are specified together. The right configuration depends on opening size, exposure, room use and property character.

4 min read

Flush Casement Windows

Flush Casement Windows can improve warmth, weather protection, security and appearance when the frame, glass, ventilation and installation are specified together. The right configuration depends on opening size, exposure, room use and property character.

4 min read

What Is a Casement Window?

What Is a Casement Window can be understood by separating the frame, opening sash, sealed or secondary glass, spacer or air gap, seals, hardware and installation. Performance comes from how these components work together, not from the pane count alone.

4 min read

Casement Windows vs Sash Windows

Casement Windows vs Sash Windows is best decided around the room and property rather than one headline feature. Compare insulation, sightlines, weight, opening method, ventilation, maintenance, security, cost and the installation conditions together.

4 min read

Flush Windows vs Casement Windows

Flush Windows vs Casement Windows is best decided around the room and property rather than one headline feature. Compare insulation, sightlines, weight, opening method, ventilation, maintenance, security, cost and the installation conditions together.

Sash Windows

Sash Windows guides

Guidance on sash-window materials, costs, cleaning and maintaining traditional proportions.

4 min read

Sash Windows

Sash Windows can improve warmth, weather protection, security and appearance when the frame, glass, ventilation and installation are specified together. The right configuration depends on opening size, exposure, room use and property character.

4 min read

uPVC Sash Windows

uPVC Sash Windows can improve warmth, weather protection, security and appearance when the frame, glass, ventilation and installation are specified together. The right configuration depends on opening size, exposure, room use and property character.

4 min read

Wooden Sash Windows

Wooden Sash Windows can improve warmth, weather protection, security and appearance when the frame, glass, ventilation and installation are specified together. The right configuration depends on opening size, exposure, room use and property character.

4 min read

How to Clean Sash Windows

Use product-compatible tools and cleaning materials, protect glass and seals, and make only small reversible adjustments. Stop if the sash must be removed, glass is loose, the window cannot be secured or the manufacturer’s adjustment points are unclear.

4 min read

Sash Windows Cost

Window pricing depends on size, frame material, opening style, glass, colour, access and finishing. Online figures rarely describe the same specification. Compare measured, written quotations that state the system, glass, ventilation, installation, making good and guarantee cover.

Window Styles

Window Styles guides

Compare tilt-and-turn, bay and other practical opening styles around ventilation, access and property character.

4 min read

Tilt and Turn Windows

Tilt and Turn Windows can improve warmth, weather protection, security and appearance when the frame, glass, ventilation and installation are specified together. The right configuration depends on opening size, exposure, room use and property character.

4 min read

Bay Windows

Bay Windows can improve warmth, weather protection, security and appearance when the frame, glass, ventilation and installation are specified together. The right configuration depends on opening size, exposure, room use and property character.

Frame Materials

Frame Materials guides

Choose between uPVC, aluminium and timber by comparing sightlines, upkeep, strength, finish and budget.

4 min read

uPVC Windows

uPVC Windows can improve warmth, weather protection, security and appearance when the frame, glass, ventilation and installation are specified together. The right configuration depends on opening size, exposure, room use and property character.

4 min read

uPVC Windows vs Aluminium Windows

uPVC Windows vs Aluminium Windows is best decided around the room and property rather than one headline feature. Compare insulation, sightlines, weight, opening method, ventilation, maintenance, security, cost and the installation conditions together.

4 min read

Wooden Windows

Wooden Windows can improve warmth, weather protection, security and appearance when the frame, glass, ventilation and installation are specified together. The right configuration depends on opening size, exposure, room use and property character.

4 min read

Aluminium Windows

Aluminium Windows can improve warmth, weather protection, security and appearance when the frame, glass, ventilation and installation are specified together. The right configuration depends on opening size, exposure, room use and property character.

4 min read

Aluminium Window Prices

Window pricing depends on size, frame material, opening style, glass, colour, access and finishing. Online figures rarely describe the same specification. Compare measured, written quotations that state the system, glass, ventilation, installation, making good and guarantee cover.

Window Security

Window Security guides

Understand how frames, glass, locking, handles and installation work together to secure a window.

4 min read

uPVC Window Security

Window security depends on the complete installed opening: reinforced or strong frames, suitable glass retention, multipoint locking, robust handles and hinges, secure fixings and accurate alignment. Check which evidence applies to the exact size and configuration being supplied.

Window Care

Window Care guides

Maintain glass, seals, drainage, hinges, handles and finishes without damaging the installed system.

4 min read

How to Care for Timber Windows

Use product-compatible tools and cleaning materials, protect glass and seals, and make only small reversible adjustments. Stop if the sash must be removed, glass is loose, the window cannot be secured or the manufacturer’s adjustment points are unclear.

4 min read

How to Care for Your Windows

Use product-compatible tools and cleaning materials, protect glass and seals, and make only small reversible adjustments. Stop if the sash must be removed, glass is loose, the window cannot be secured or the manufacturer’s adjustment points are unclear.

4 min read

How to Clean uPVC Windows and Doors

Use product-compatible tools and cleaning materials, protect glass and seals, and make only small reversible adjustments. Stop if the sash must be removed, glass is loose, the window cannot be secured or the manufacturer’s adjustment points are unclear.

Window Colours

Window Colours guides

Coordinate frames with brick, stone, render, roofline and the internal finish of each room.

4 min read

White uPVC Windows

White uPVC Windows works best when frame colour, sightlines, glazing bars and opening patterns relate to the whole building. Compare physical finish samples beside the brick, stone or render and review how the frame will look from both outside and inside.

4 min read

Grey Windows

Grey Windows works best when frame colour, sightlines, glazing bars and opening patterns relate to the whole building. Compare physical finish samples beside the brick, stone or render and review how the frame will look from both outside and inside.

4 min read

Black Windows

Black Windows works best when frame colour, sightlines, glazing bars and opening patterns relate to the whole building. Compare physical finish samples beside the brick, stone or render and review how the frame will look from both outside and inside.

4 min read

Window Colours

Window Colours works best when frame colour, sightlines, glazing bars and opening patterns relate to the whole building. Compare physical finish samples beside the brick, stone or render and review how the frame will look from both outside and inside.

Window Design

Window Design guides

Plan glazing bars, handles, opening patterns, colours and proportions around the architecture of the property.

4 min read

Modern Windows

Modern Windows works best when frame colour, sightlines, glazing bars and opening patterns relate to the whole building. Compare physical finish samples beside the brick, stone or render and review how the frame will look from both outside and inside.

4 min read

Cottage Windows

Cottage Windows works best when frame colour, sightlines, glazing bars and opening patterns relate to the whole building. Compare physical finish samples beside the brick, stone or render and review how the frame will look from both outside and inside.

4 min read

Window Furniture

A reliable window decision starts with the opening, room and elevation. Compare style, material, glass, ventilation, security, maintenance and installation as one written specification.

4 min read

Window Design Ideas

Window Design Ideas works best when frame colour, sightlines, glazing bars and opening patterns relate to the whole building. Compare physical finish samples beside the brick, stone or render and review how the frame will look from both outside and inside.

Heritage Windows

Heritage Windows guides

Balance energy performance and maintenance with original proportions, conservation constraints and period character.

4 min read

Georgian Windows

Georgian Windows should preserve the proportions and rhythm of the elevation as well as improving comfort. Frame material, sightlines, glazing bars, colour and opening pattern may be controlled by listing, conservation status or other planning rules.

4 min read

Victorian Windows

Victorian Windows should preserve the proportions and rhythm of the elevation as well as improving comfort. Frame material, sightlines, glazing bars, colour and opening pattern may be controlled by listing, conservation status or other planning rules.

4 min read

Heritage Windows

Heritage Windows should preserve the proportions and rhythm of the elevation as well as improving comfort. Frame material, sightlines, glazing bars, colour and opening pattern may be controlled by listing, conservation status or other planning rules.

Noise Reduction

Noise Reduction guides

Reduce external sound by considering glass build-up, seals, ventilation paths, walls, roofs and the complete room.

4 min read

Noise Reduction Windows

No ordinary domestic window makes a room completely soundproof. Good results come from the complete barrier: suitable glass thicknesses, a sufficiently large air gap where appropriate, airtight seals, controlled ventilation and attention to walls, roofs and other sound paths.

4 min read

How to Soundproof Windows

No ordinary domestic window makes a room completely soundproof. Good results come from the complete barrier: suitable glass thicknesses, a sufficiently large air gap where appropriate, airtight seals, controlled ventilation and attention to walls, roofs and other sound paths.

4 min read

How to Soundproof a Room

No ordinary domestic window makes a room completely soundproof. Good results come from the complete barrier: suitable glass thicknesses, a sufficiently large air gap where appropriate, airtight seals, controlled ventilation and attention to walls, roofs and other sound paths.

Buying Guides

Buying Guides

Make informed choices about style, frame, glass, ventilation, measurement, costs, installation and guarantees.

4 min read

Windows Buying Guide

A reliable window decision starts with the opening, room and elevation. Compare style, material, glass, ventilation, security, maintenance and installation as one written specification.

4 min read

Window Range Comparison

Window Range Comparison is best decided around the room and property rather than one headline feature. Compare insulation, sightlines, weight, opening method, ventilation, maintenance, security, cost and the installation conditions together.

4 min read

How to Choose Replacement Windows

A reliable window decision starts with the opening, room and elevation. Compare style, material, glass, ventilation, security, maintenance and installation as one written specification.

4 min read

What Are the Standard Window Sizes?

A reliable window decision starts with the opening, room and elevation. Compare style, material, glass, ventilation, security, maintenance and installation as one written specification.

4 min read

The 8 Different Types of Windows

A reliable window decision starts with the opening, room and elevation. Compare style, material, glass, ventilation, security, maintenance and installation as one written specification.

4 min read

How to Measure a Window

Use product-compatible tools and cleaning materials, protect glass and seals, and make only small reversible adjustments. Stop if the sash must be removed, glass is loose, the window cannot be secured or the manufacturer’s adjustment points are unclear.

4 min read

How Much Do New Windows Cost?

Window pricing depends on size, frame material, opening style, glass, colour, access and finishing. Online figures rarely describe the same specification. Compare measured, written quotations that state the system, glass, ventilation, installation, making good and guarantee cover.

Ventilation

Ventilation guides

Understand why background ventilation matters and how it interacts with moisture, comfort and Building Regulations.

4 min read

Trickle Vents

Trickle Vents can be understood by separating the frame, opening sash, sealed or secondary glass, spacer or air gap, seals, hardware and installation. Performance comes from how these components work together, not from the pane count alone.

Glass Explained

Glass Explained guides

Straightforward explanations of what window glass filters, transmits and reflects.

4 min read

Can You Tan Through a Window?

Can You Tan Through a Window can be understood by separating the frame, opening sash, sealed or secondary glass, spacer or air gap, seals, hardware and installation. Performance comes from how these components work together, not from the pane count alone.

Window Troubleshooting

Window Troubleshooting guides

Carry out safe basic checks and recognise when a window needs adjustment, replacement hardware or professional repair.

4 min read

How to Stop Condensation on Windows

Start by identifying when the fault occurs and avoid forcing the handle or sash. Check accessible tracks, drainage and visible debris, then compare operation in different positions. Stiffness, looseness, water or condensation can come from several causes, so diagnose the symptom before adjusting hardware.

4 min read

How to Adjust a Top Hung uPVC Window

Use product-compatible tools and cleaning materials, protect glass and seals, and make only small reversible adjustments. Stop if the sash must be removed, glass is loose, the window cannot be secured or the manufacturer’s adjustment points are unclear.

4 min read

How to Replace a uPVC Window Handle

Use product-compatible tools and cleaning materials, protect glass and seals, and make only small reversible adjustments. Stop if the sash must be removed, glass is loose, the window cannot be secured or the manufacturer’s adjustment points are unclear.

4 min read

How to Fix a Loose Window Handle

Use product-compatible tools and cleaning materials, protect glass and seals, and make only small reversible adjustments. Stop if the sash must be removed, glass is loose, the window cannot be secured or the manufacturer’s adjustment points are unclear.

5 min read

How to Fix Stiff or Loose uPVC Window Hinges

Start by identifying when the fault occurs and avoid forcing the handle or sash. Check accessible tracks, drainage and visible debris, then compare operation in different positions. Stiffness, looseness, water or condensation can come from several causes, so diagnose the symptom before adjusting hardware.

5 min read

How to Fix a Stuck Tilt and Turn Window

Start by identifying when the fault occurs and avoid forcing the handle or sash. Check accessible tracks, drainage and visible debris, then compare operation in different positions. Stiffness, looseness, water or condensation can come from several causes, so diagnose the symptom before adjusting hardware.

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